Cheap flights from Sioux Falls to London from £456
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Sioux Falls to London
Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 September 2025.
Round-trip from | £456 |
---|---|
Popular in | January |
Cheapest in | May |
Average price | £670 |
Find flight deals from Sioux Falls to London
Cheapest flights from Sioux Falls to LondonExplore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Wed 12/11
13:30-07:05
1 stop11h 35m
London Heathrow
Wed 19/11
08:55-23:11
2 stops20h 16m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Wed 10/12
10:55-07:05
1 stop14h 10m
London Heathrow
Thu 18/12
08:55-23:13
1 stop20h 18m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Wed 10/12
13:30-11:25
2 stops15h 55m
London Heathrow
Thu 18/12
10:45-23:11
2 stops18h 26m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Wed 1/10
08:00-09:35
2 stops19h 35m
London Heathrow
Wed 8/10
07:25-20:21
2 stops18h 56m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Tue 7/10
11:19-06:20
1 stop13h 01m
London Heathrow
Fri 17/10
07:30-22:22
2 stops20h 52m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Mon 6/10
13:58-09:40
1 stop13h 42m
London Heathrow
Tue 14/10
08:30-22:22
2 stops19h 52m
Sioux FallsLondon
FSD - LHR
FSDLHR
Sioux Falls Joe Foss Field
Wed 1/10
13:19-09:00
1 stop13h 41m
London Heathrow
Wed 8/10
12:00-21:16
1 stop15h 16m
Sioux FallsLondon
FSD - LCY
FSDLCY
Sioux Falls Joe Foss Field
Sun 7/12
11:20-12:50
2 stops19h 30m
London City
Sat 13/12
12:20-21:51
3 stops39h 31m
Sioux FallsLondon
FSD - LCY
FSDLCY
Sioux Falls Joe Foss Field
Wed 10/12
18:08-16:40
2 stops16h 32m
London City
Thu 18/12
09:40-20:09
2 stops16h 29m
Sioux FallsLondon
FSD - LCY
FSDLCY
Sioux Falls Joe Foss Field
Sun 2/11
13:47-16:40
2 stops20h 53m
London City
Sat 8/11
12:20-21:46
3 stops39h 26m
Best time to book a flight from Sioux Falls to London
Have a flexible travel schedule? Discover the best time to fly to London from Sioux Falls with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Sioux Falls to London
What is the cheapest month to book a flight from Sioux Falls to London?
Currently, January is the cheapest month in which you can book a flight from Sioux Falls to London (average of £112). Flying from Sioux Falls to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost for a return flight from Sioux Falls to London?
What’s the top stopover airport for flights from Sioux Falls to London?
Share of one-stop return flights from Sioux Falls to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Sioux Falls to London on Cheapflights.
What’s the cheapest stopover airport for flights from Sioux Falls to London?
Average return fare for one-stop flights from Sioux Falls to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £546.
What’s the fastest stopover option from Sioux Falls to London?
Shortest average travel time for one-stop one-way flights from Sioux Falls to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 30m.
Which airport typically offers the quickest stopover for flights from Sioux Falls to London?
Average stopover duration for one-stop one-way flights from Sioux Falls to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 28m.
Related info for your journey
Find useful and relevant information for your journey from Sioux Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Sioux Falls to London
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How does Cheapflights help users find flights from Sioux Falls to London?
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Why should you use Cheapflights to find cheap flight tickets from Sioux Falls to London?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sioux Falls to London for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Sioux Falls to London with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux Falls to London, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Sioux Falls to London become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sioux Falls today and book when prices fit your budget.